FeaturedDeveloper
API Request Builder
Compose API requests with headers, query params, and body templates for faster testing workflows.
Open Tool Free Developer Utilities
Build Faster With Free Tools
Practical utilities for frontend engineers and developers. Fast, clean, and free.
FeaturedCSS
Color Palette Generator
Generate harmonious color systems with CSS variables, swatches, and contrast-friendly variants.
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JSON Formatter and Validator
Format, minify, and validate JSON with instant error feedback.
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JWT Decoder
Decode JWT header and payload to inspect claims quickly in the browser.
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Regex Tester
Test regular expressions against sample text and inspect match groups.
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UTM Link Builder
Build campaign-ready URLs with UTM parameters, presets, and share-ready output.
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Advanced Password Generator
Generate high-entropy passwords with charset controls and ambiguity filters.
Open ToolEncoding
Base64 Encode/Decode
Encode and decode UTF-8 text quickly with one-click copy actions.
Open ToolCSS
CSS Border Radius Generator
Generate border-radius values visually with linked and independent corner controls.
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CSS Box Shadow Generator
Create layered box-shadow values visually with instant CSS output.
Open ToolCSS
CSS Clamp Calculator
Generate fluid typography and spacing values with CSS clamp().
Open ToolCSS
CSS Gradient Generator
Create linear, radial, and conic gradients with live preview and copy-ready CSS.
Open ToolDeveloper
cURL Command Builder
Generate cURL commands from method, headers, auth, and JSON body with safe escaping.
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Hash Generator and Verifier
Generate MD5, SHA-1, SHA-256, and SHA-512 for verification workflows.
Open ToolEncoding
HTML Entity Encode/Decode
Convert special characters to HTML entities and decode entities back to text.
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Lorem Ipsum Generator
Generate placeholder text by words, sentences, or paragraphs.
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Markdown Table Generator
Convert CSV-style data into clean Markdown tables with alignment and quick copy output.
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Open Graph Meta Generator
Generate Open Graph and Twitter meta tags with social card preview and copy-ready output.
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Robots.txt Generator
Generate a starter robots.txt with sitemap and crawler directives.
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Slug Generator
Create clean URL slugs from titles with instant normalization.
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Unix Timestamp Converter
Convert Unix seconds timestamps to ISO dates and back instantly.
Open ToolEncoding
URL Encoder/Decoder
Encode or decode URL-safe strings instantly for query and path debugging.
Open ToolDeveloper
UUID Generator
Generate UUID v4 values for IDs, fixtures, and API test data.
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